1790 /** Queue the sync monitoring datagram.

  1791  */

  1792 int ec_cdev_ioctl_sync_mon_queue(

  1793         ec_master_t *master, /**< EtherCAT master. */

  1794         unsigned long arg, /**< ioctl() argument. */

  1795         ec_cdev_priv_t *priv /**< Private data structure of file handle. */

  1796         )

  1797 {

  1798     if (unlikely(!priv->requested))

  1799         return -EPERM;

  1800 

  1801     down(&master->io_sem);

  1802     ecrt_master_sync_monitor_queue(master);

  1803     up(&master->io_sem);

  1804     return 0;

  1805 }

  1806 

  1807 /*****************************************************************************/

  1808 

  1809 /** Processes the sync monitoring datagram.

  1810  */

  1811 int ec_cdev_ioctl_sync_mon_process(

  1812         ec_master_t *master, /**< EtherCAT master. */

  1813         unsigned long arg, /**< ioctl() argument. */

  1814         ec_cdev_priv_t *priv /**< Private data structure of file handle. */

  1815         )

  1816 {

  1817     uint32_t time_diff;

  1818 

  1819     if (unlikely(!priv->requested))

  1820         return -EPERM;

  1821 

  1822     down(&master->io_sem);

  1823     time_diff = ecrt_master_sync_monitor_process(master);

  1824     up(&master->io_sem);

  1825 

  1826     if (copy_to_user((void __user *) arg, &time_diff, sizeof(time_diff)))

  1827         return -EFAULT;

  1828 

  1829     return 0;

  1830 }

  1831 

  1832 /*****************************************************************************/

  1833 

  3353         case EC_IOCTL_SYNC_MON_QUEUE:

  3354             if (!(filp->f_mode & FMODE_WRITE))

  3355                 return -EPERM;

  3356             return ec_cdev_ioctl_sync_mon_queue(master, arg, priv);

  3357         case EC_IOCTL_SYNC_MON_PROCESS:

  3358             if (!(filp->f_mode & FMODE_WRITE))

  3359                 return -EPERM;

  3360             return ec_cdev_ioctl_sync_mon_process(master, arg, priv);